Check in codegen test expectations.

test/codegen/expect/language/field_increment_bailout_test.js

+dart_library.library('language/field_increment_bailout_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__field_increment_bailout_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const mirrors = dart_sdk.mirrors;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const field_increment_bailout_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  field_increment_bailout_test.N = class N extends core.Object {
+    new(outgoing, incoming) {
+      this.outgoing = outgoing;
+      this.incoming = incoming;
+    }
+  };
+  dart.setSignature(field_increment_bailout_test.N, {
+    constructors: () => ({new: dart.definiteFunctionType(field_increment_bailout_test.N, [dart.dynamic, dart.dynamic])})
+  });
+  field_increment_bailout_test.A = class A extends core.Object {
+    new(node) {
+      this.node = node;
+      this.list = dart.dload(node, 'outgoing');
+      this.offset = 0;
+    }
+    next() {
+      let edge = dart.dindex(this.list, (() => {
+        let x = this.offset;
+        this.offset = dart.notNull(x) + 1;
+        return x;
+      })());
+      if (dart.equals(this.list, dart.dload(this.node, 'outgoing'))) {
+        this.list = dart.dload(this.node, 'incoming');
+        this.offset = 0;
+      } else
+        this.list = null;
+      return edge;
+    }
+  };
+  dart.setSignature(field_increment_bailout_test.A, {
+    constructors: () => ({new: dart.definiteFunctionType(field_increment_bailout_test.A, [dart.dynamic])}),
+    methods: () => ({next: dart.definiteFunctionType(dart.dynamic, [])})
+  });
+  field_increment_bailout_test.L = dart.callableClass(function L(...args) {
+    const self = this;
+    function call(...args) {
+      return self.call.apply(self, args);
+    }
+    call.__proto__ = this.__proto__;
+    call.new.apply(call, args);
+    return call;
+  }, class L extends core.Object {
+    new(list) {
+      this.list = list;
+    }
+    noSuchMethod(mirror) {
+      return mirrors.reflect(this.list).delegate(mirror);
+    }
+  });
+  dart.setSignature(field_increment_bailout_test.L, {
+    constructors: () => ({new: dart.definiteFunctionType(field_increment_bailout_test.L, [dart.dynamic])})
+  });
+  field_increment_bailout_test.main = function() {
+    let o = new field_increment_bailout_test.A(new field_increment_bailout_test.N(new field_increment_bailout_test.L(JSArrayOfint().of([1])), new field_increment_bailout_test.L(JSArrayOfint().of([2]))));
+    for (let i = 1; i <= 2; i++)
+      expect$.Expect.equals(i, o.next());
+    expect$.Expect.equals(null, o.list);
+  };
+  dart.fn(field_increment_bailout_test.main, VoidTodynamic());
+  // Exports:
+  exports.field_increment_bailout_test = field_increment_bailout_test;
+});